Well-Boring Rod.
Description:
Patent for a well boring rod in which a hollow rod or shaft is used as a rotary power transmission shaft. The invention has for its primary objects the provision of means for reinforcing or stiffening a well boring rod so that a lighter tube may be used than would otherwise be the case.
Date:
May 21, 1918
Creator:
Layne, Mahlon E.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department